CORRECT ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES Q&A 2026 |INSTANT DOWNLOAD
1. A patient is prescribed 250 mg of a medication. The
pharmacy provides a solution of 50 mg/mL. How many
milliliters should the nurse administer?
A) 2 mL
B) 4 mL
C) 5 mL
D) 6 mL
Correct Answer: C) 5 mL
Rationale: Use the formula
Dose to give=Desired DoseAvailable Dose×Volume=25050×
1=5 mL\text{Dose to give} = \frac{\text{Desired
Dose}}{\text{Available Dose}} \times \text{Volume} =
\frac{250}{50} \times 1 = 5\text{
mL}Dose to give=Available DoseDesired Dose
×Volume=50250×1=5 mL.
2. A doctor orders 1 g of a drug. The supply available is 500
mg tablets. How many tablets are needed?
A) 1 tablet
B) 2 tablets
C) 3 tablets
D) 4 tablets
, Correct Answer: B) 2 tablets
Rationale: Convert grams to milligrams: 1 g = 1000 mg.
Divide 1000 mg by 500 mg/tablet = 2 tablets.
3. A patient needs 0.2 L of IV fluid. How many milliliters
should the nurse prepare?
A) 20 mL
B) 200 mL
C) 2 mL
D) 0.2 mL
Correct Answer: B) 200 mL
Rationale: 1 L = 1000 mL, so 0.2 × 1000 = 200 mL.
4. The physician prescribes 0.5 mg of digoxin. The supply
available is 0.25 mg tablets. How many tablets should be
administered?
A) 0.5 tablet
B) 1 tablet
C) 2 tablets
D) 3 tablets
Correct Answer: C) 2 tablets
Rationale: Divide the ordered dose by the tablet strength:
0.5 ÷ 0.25 = 2 tablets.
5. A medication label reads 120 mg/5 mL. How many
milliliters contain 240 mg?
A) 5 mL
B) 8 mL
C) 10 mL
, D) 15 mL
Correct Answer: C) 10 mL
Rationale:
Volume=Desired DoseConcentration×5=240120×5=10\text
{Volume} = \frac{\text{Desired
Dose}}{\text{Concentration}} \times 5 = \frac{240}{120}
\times 5 = 10Volume=ConcentrationDesired Dose
×5=120240×5=10 mL.
6. A patient’s IV is ordered at 1000 mL over 8 hours. What is
the flow rate in mL/hr?
A) 100 mL/hr
B) 125 mL/hr
C) 150 mL/hr
D) 200 mL/hr
Correct Answer: B) 125 mL/hr
Rationale: Flow rate = Total volume ÷ Time = 1000 ÷ 8 =
125 mL/hr.
7. A nurse is to administer 30 mg of a drug. The vial reads 10
mg/mL. How many milliliters should be given?
A) 1 mL
B) 2 mL
C) 3 mL
D) 4 mL
Correct Answer: C) 3 mL
Rationale:
Volume=DoseConcentration=3010=3\text{Volume} =
, \frac{\text{Dose}}{\text{Concentration}} = \frac{30}{10} =
3Volume=ConcentrationDose=1030=3 mL.
8. An order is for 750 mg of an antibiotic. The tablets
available are 250 mg. How many tablets will the nurse
give?
A) 2
B) 3
C) 4
D) 5
Correct Answer: B) 3
Rationale: 750 ÷ 250 = 3 tablets.
9. A solution contains 5% dextrose. How many grams of
dextrose are in 500 mL of the solution?
A) 5 g
B) 25 g
C) 50 g
D) 100 g
Correct Answer: C) 25 g
Rationale: 5% means 5 g/100 mL. So, 500 × (5 ÷ 100) = 25
g.
10. A doctor orders 2 L of IV fluids to run over 24 hours.
What is the hourly flow rate?
A) 50 mL/hr
B) 75 mL/hr
C) 83 mL/hr
D) 100 mL/hr